Prepare the dialer
Open Settings → Dialer, select an available business number, and allow microphone access when your browser asks. Use headphones when possible to reduce echo.
Place a call
Open the dialer, enter or select the contact, confirm the number and caller ID, then start the call. Keep the page open while connected. Notes and outcomes should be saved to the matching contact so the rest of the team can continue the conversation.
If the call cannot start, confirm that the selected number is active, your wallet and spending controls allow the call, the destination is valid, and the browser still has microphone permission. Try a company-controlled test phone before contacting Support.